Tell the mot station to sort their act out, they're meant to purge dervs before testing for that exact reason.
And fyi the injector cleaner had nothing to do with it, it's the high exhaust temps from running at 75 in third that will have done the job, but a few quick 30-70 burns would have done the same job without wasting so much fuel.
And fyi the injector cleaner had nothing to do with it, it's the high exhaust temps from running at 75 in third that will have done the job, but a few quick 30-70 burns would have done the same job without wasting so much fuel.